Subject: 3.5m Night Log 20150920
From: cgray@apo.nmsu.edu
Date: Mon, 21 Sep 2015 12:20:51 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Sunday, September 20, 2015
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
S.Hawley          S.Hawley, J.Davenport, DIS            --:--   --:--
                  students
M.Hammergren      M.Broker, K.Nault     SPICam         23:15   02:16
C.Sakari          C.Sakari              SPICam         02:16   05:51
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
UW01/R     19:11   00:10    0  4.0   0.1  0.9   0.0  0.0   0    0
AD02/R     00:10   02:10    0    0    0    0    2.0  0.0   0    0
UW04/R/D   02:10   06:42    0    0    0    0    4.5  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: C.Gray
Start of night was cloudy and humid.  Clouds became thinner and humidity improved. Second half of night, clouds improved and seeing was good.
Echelle slit viewer computer was crashing making the echelle unusable.
UW01 had backup instrument chosen, however it was impractical to change, thus, when weather improved, they lost some usable time.
See nightlog for Sept 18 for list of UW students.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
UW01   E         I/S       23:10  00:10   Slitty crashing
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 23:17 SPIcam     377(  721)  26  49  12.9 13.3 13.8 13.1 12.9   r  1.50
 02:27 SPIcam     500(  807) 218  79  13.2 12.9 13.4 13.1 13.0   r  0.73
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp C Dewp C  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    54    51      4   233   (SW)    364   cloudy    humid
     17:00    56    51      2   216   (SW)    307   cloudy    humid
     18:00    56    50      6   209  (SSW)    291 mstly cldy  humid
     19:00    54    51      3   201  (SSW)    291 mstly cldy  humid
     20:00    52    50      8   131   (SE)    304 mstly cldy  humid
     21:00    53    49      2   168  (SSE)    309  ptly cldy   none
     22:00    55    48      5    90    (E)    297  ptly cldy   none
     23:00    55    45      4    44   (NE)    251  ptly cldy   none
     00:00    56    45     13    78  (ENE)    263  ptly cldy   none
     01:00    56    40      5   105  (ESE)    168  ptly cldy   none
     02:00    56    36      7   107  (ESE)    135 mstly cldy   none
     03:00    56    33      8   111  (ESE)    107 mstly clr    none
     04:00    55    39     10   109  (ESE)    227 mstly clr    none
     05:00    55    36      8   109  (ESE)    393    clear     none
     06:00    56    31      6   130   (SE)    405    clear     none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.0
    Current TUI version: 2.4.0